VPH Primary Calibration Rev 1.1 Back Catalog number: 97386 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 4PM101 2,2',4,5,5'-Pentachloro-4'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane Price on request 94982 PCB Congener Mix #4 Price on request 71610 4,4’-Dichlorobenzophenone Price on request